Lewis finished in sixth place in the boxingmen's welterweight at the 2014 Commonwealth Games. Lewis was ruled out of his welterweight quarter-final bout against Indian boxer Mandeep Jangra by medical staff after suffering a cut above the eye during his second round – round of 16 – unanimous points win over Nigeria's Kehinde Ademuyiwa. Lewis and his team called for a return of headgear for the games after he was ruled out.[4][5][6][7]
Lewis made his pro-boxing debut on 23 May 2019 at the Wildfighter boxing event presented by Will Tomlinson in Melbourne, Australia where he scored the second round knockout win against Sanong Seepongsert of Thailand.[9]